Bone problems.

Abstract

There are a growing number of reports of bone problems (avascular necrosis and osteonecrosis) among people with HIV. These problems are caused by a lack of blood supply in the bone, which leads to the deterioration and death of bone tissue. Generally, bones try to repair themselves. But bones that support a lot of weight, like the hip, can weaken when this condition occurs. This may cause the bone to fracture or collapse. This condition can also lead to severe pain and inflammation or overgrowth of bone in and around the joints (osteoarthritis). While still relatively uncommon, people should be aware of reports of avascular necrosis that have led to hip fracture or dislocation. Symptoms of pain associated with avascular necrosis also commonly affect the shoulder and/or knee. Avascular necrosis is different from osteoporosis, a general term for a progressive loss in bone density that results in skeletal (bones that make up the framework of the body) weakness.